Energy limit of runaway electrons in the HT-7 tokamak

被引：14

作者：

Chen, ZY ^{[1
]}

Wan, BN ^{[1
]}

Lin, SY ^{[1
]}

Shi, YJ ^{[1
]}

Hu, LQ ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China

来源：

PHYSICS LETTERS A | 2006年 / 351卷 / 06期

基金：

中国国家自然科学基金;

关键词：

runaway electron; energy limit; hard X-ray; tokamak;

D O I：

10.1016/j.physleta.2005.11.026

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The energy limit of runaway electrons in the HT-7 tokamak is investigated by measuring the synchrotron radiation originated from the runaway electrons and the hard X-ray radiation (HXR) when they hit the first wall. An upper boundary on the runaway energy can appear due to the resonance between the electron gyromotion and the magnetic field ripple in the low field side. The experimental derived maximum energy in the core is about 26 MeV, and maximum energy in the edge region is blocked to no more than 5 MeV. This resonance interaction of runaways with the nth harmonic of the magnetic field ripple can account for the observed energy gap of the runaways. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：413 / 416

页数：4

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